Fused zirconia is obtained from zircon by desilication process using composite reductive agent in electric arc furnace, whereby impurities such as Fe, Ti are seperated.

• 以锆英石精矿为原料，加脱硅复合还原剂、外加剂等，经电弧炉一次熔融脱硅并除铁、钛，再将熔炼出的富锆液喷吹成球。